18-24 June 2017
Palacio de Congresos
Europe/Madrid timezone
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Contribution Parallel

Andalucía III
Hadron Structure

Nucleon quark content with smeared clover fermions


  • Dr. Christian HOELBLING

Primary authors



I present continuum-limit results for the scalar quark content of the nucleon computed on BMW 3-HEX ensembles. The contents are determined, from the quark-mass dependence of the nucleon mass, through the Feynman-Hellman theorem. I describe a method that avoids a separate computation of quark-mass renormalization constants. Individual up- and-down quark contents of the proton and neutron are computed using the isospin splitting of the nucleon mass obtained from the same ensembles. A thorough systematic error analysis is performed. Implications of the results for dark matter searches are briefly discussed.

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Hadron Structure